We rarely see cold in the -23c area, in fact up until a few days ago we've only seen these temperatures 2 times in the past 14 years - now its 3 times. On December 27th we got a cold blast that took us to the -23c zone and the entire region was blanketed with the bone chilling cold. That temperature is ok for us, but some other areas in the Okanagan were not spared and endured colder temperatures down to -27c and added wind chill values as low as -38c. For us -23c is not a critical temperature as nearly all our commercial varieties have good cold tolerance to about -27c or colder but still we prefer a bit warmer winter for both the vines and our sake.
For most vinifera varieties like Pinot Noir, Chardonnay, Merlot etc., -23c is kind of the make it or break it zone as these varieties don't have much cold tolerance beyond -23c. So this is bad news for some grape growing areas in BC. Kamloops was in a deep freeze for a few days in the -27c zone as was Kelowna showing -27c on both December 27th and December 28th and wind chill values in Kamloops were -38c and Kelowna -34c. That's not good and some bud, if not trunk, damage can be expected but we will hope for the best for those out there as you really never know what this all means until the spring comes.
Lots of winter ahead of us yet and about 1 foot of snow on the ground so far, the big snow usually comes in January-February. We are hoping for milder winter temperatures to take us into spring and if -23c is as cold as we get then we are good.
As we end 2021 we reflect on the challenging year for weather in BC, -24c cold in February, -2c record breaking frost in late May, record breaking +46c heat in early July, forest fire threats in July and August, record breaking rain and destruction in November and now -23c in December....but we also look forward to the new year and the next growing season with excitement.
Hoping for a better year in 2022 and wishing everyone a healthy, happy and prosperous new year!